Medicine chest and instructive advice : with directions for ships and family use Hoppin, George W. First Aid Materia Medica Providence : John Miller, printer, 1823 Text 21 p. nlm:nlmuid-62960600R-bk 62960600R http://resource.nlm.nih.gov/62960600R English The National Library of Medicine believes this item to be in the public domain : https://creativecommons.org/publicdomain/mark/1.0/